In what seems to have become a monthly "OMG critical security patch", my server that hosts Teamspeak needs to be rebooted on Saturday 12th August during a 1 hour window starting 00:00 UTC / 01:00 BST / 02:00 CEST. The actual reboot should take (much) less than 20 minutes. Obviously TS will be unavailable while this occurs, but if you are using it at that time it should automatically reconnect when the server is back up.